function showElement(strElement, strPToDisplay) 
{
    if (screen.width > 799)
    {
        if (document.getElementById(strElement)) {document.getElementById(strElement).style.display = "inline";}
    }
}

function hideElement(strElement, strPToDisplay) {if (document.getElementById(strElement)) {document.getElementById(strElement).style.display = "none";}}

function left(str, n){
  if (n <= 0)
      return "";
  else if (n > String(str).length)
      return str;
  else
      return String(str).substring(0,n);
}

function right(str, n){
    if (n <= 0)
       return "";
    else if (n > String(str).length)
       return str;
    else {
       var iLen = String(str).length;
       return String(str).substring(iLen, iLen - n);
    }
}

function displayMenuSelection(strStartPage, strEndPage) {
    var strMenu = document.getElementById("totalMenu").innerHTML;
    var strStartString = "<!-- url=" + strStartPage + " begin -->";
    var strEndString = "<!-- url=" + strEndPage + " end -->";
    var intStartPosition = strMenu.indexOf(strStartString);
    var intEndPosition = strMenu.indexOf(strEndString);
    var strMenuToDisplay = left(strMenu, intEndPosition + strEndString.length);
    strMenuToDisplay = right(strMenuToDisplay, strMenuToDisplay.length - intStartPosition);
    document.write(strMenuToDisplay);
}


function displayMenuSelection2(strStartPage, strEndPage) {
    var strMenu = document.getElementById("totalMenu2").innerHTML;
    var strStartString = "<!-- url=" + strStartPage + " begin -->";
    var strEndString = "<!-- url=" + strEndPage + " end -->";
    var intStartPosition = strMenu.indexOf(strStartString);
    var intEndPosition = strMenu.indexOf(strEndString);
    var strMenuToDisplay = left(strMenu, intEndPosition + strEndString.length);
    strMenuToDisplay = right(strMenuToDisplay, strMenuToDisplay.length - intStartPosition);
    document.write(strMenuToDisplay);
}